Aqualisa SIERRA User manual

SIERRA
INSTALLATION AND USER GUIDE
TM
ROUND SHOWER COLUMN

2
GENERAL INFORMATION
This product complies with EN1111.
This product must be fitted in compliance with the UK Water Supply (Fittings)
Regulations. If in doubt please contact your local water authority.
TOOLS REQUIRED (TOOLS NOT SUPPLIED)
We have taken great care to ensure that this product reaches you in
perfect condition. However should any parts be damaged or missing
please contact your point of purchase. This does not aect your statutory
rights. In addition if you require replacement parts please contact the
Aqualisa customer helpline on 01959 560010 for assistance.
CONTENTS
General Information 2
Tools Required (Tools not supplied) 2
Components 3
Warranty 4
Before You Start 4
Installation 5
Cartridge Temperature Adjustment 10
General Maintenance 11
General Cleaning 13
User Instructions 13
Trouble Shooting 14

3
COMPONENTS
NO. DESCRIPTION QTY
17
15
18
16
19
10
9
8
7
56
4
3
2
1
11
13 14
12
1Bar Valve 1
2Sealing Washer 2
3Cover Plate 2
4Threaded Connector 2
5Copper Olive 2
6Bracket Wall Screw 4
7Fixing Bracket 2
8Wall Plug 4
9Hose Restraint 1
10 Riser Rail 1
11 Handset Holder 1
12 Rail Bracket 1
13 Wall Stay Screw 1
14 Wall Stay 1
15 Wall Plug 1
16 Allen Key 1
17 Drencher Head 1
18 Handset 1
19 Shower Hose - 1.5m 1

4
WARRANTY
Aqualisa products are supplied complete with a 1 year guarantee that can
be upgraded by registering this product with Aqualisa.
For details see: www.aqualisa.co.uk/warranty
BEFORE YOU START
This shower should be installed by a competent person in compliance with
current Water Supply Regulations. For further details contact your Local
Water Authority.
a. Identify all components and check pack contents.
b. Turn o water supplies.
c. Suitable full bore isolation valves must be fitted to both supplies in
accordance with current Water Supply Regulations and our terms of
warranty. Valves must be accessible for warranty and servicing.
Before making any pipe connections all supplies MUST be
thoroughly flushed to remove any debris.
WATER SUPPLY REQUIREMENTS
Hot Water Maximum: 65˚C Cold Water Minimum: 5˚C
Recommended 60-65˚C Recommended 10-15˚C
Always maintain a 10˚C dierence between hot system temperature and
maximum hot setting of valve.
Operating Pressure Range: Min. 1.0 bar, Max. 5.0 bar
When water pressure is higher than 5 bar a pressure reducing valve (not
supplied) must be fitted before the mixer. A setting of 3 bar is recommended.
This valve is suitable for gravity boosted, balanced high pressure and
combination boiler systems.
For gravity pumped systems use 22mm supply pipes and reduce to 15mm
to protrude through the finished wall.

5
Pump Installation: PUMPS MUST NOT BE FITTED DIRECTLY TO A
WATER MAIN. REFER TO PUMP MANUFACTURERS INSTALLATION
GUIDELINES. Ensure there is adequate flow through the pump to activate
the flow switches.
Combination boiler: MUST have a minimum rating of 24kW (80,000 Btu)
and be of the type fitted with a fully modulating gas valve.
Boiler performance may aect outlet temperature.
Operating pressures: Hot and cold supplies should be kept as even as
possible in order to ensure the maximum eciency of the mixer.
INSTALLATION
Fitting the Bar Valve
1
Ensuring adequate provision to allow the water to discharge safely to
waste, turn on the supplies to flush the system through. Attach pressure
test equipment and pressure test the system in accordance with Water
Supply Regulations.
2
Turn o the water supply following system flushing.
3
Construct suitable 15mm inlet supplies at level 150mm centres. Ensure
the pipework protrudes a minimum of 100mm, measured from the
intended finished wall surface.
N.B. PRIOR TO FITTING VALVE, MEASUREMENTS MUST BE MADE IN
PREPARATION FOR FITTING THE SHOWER COLUMN. Ensure that
the shower is set in a comfortable position for all users and the shower
column fits within the height restrictions of the proposed siting.
Inlet water supplies
As viewed from front on:
Left = HOT Right = COLD
Pipe centres: 150± 1mm
Pipe tails: 26 - 28mm
From finished surface

6
This product incorporates an adjustable height shower column.
Height adjustment: *845-1050mm
N.B. *Measured from inlet pipe centres to the top of the arm.
4
Once the wall surface has been finished, flush through the pipe work
prior to trimming the length of the pipes to 26-28mm, measured from
the finished wall surface.
N.B. We recommend using a rotary type cutter but if a hacksaw is
used, ensure the cut is straight and the pipe ends must be carefully
deburred and chamfered.
N.B. If plastic pipe is used, tube inserts must be fitted and must not
increase the diameter or extend the cut o length by more than 2mm.
It may be easier to fit the pipe inserts AFTER fitting the copper olives.
5
Preparation for shower column: Measure
and mark the centre between the pipe tails
i.e. pipe centres are at 150mm.
Centre is 75mm.
Using a level, measure from the central
point, vertical to 750mm and mark,
as shown.
150mm
75mm
750mm
6
Place the fixing bracket over the projecting pipe tails, mark and drill
the fixing points taking care to avoid pipe work buried within the wall.
Apply mastic around the pipes where they protrude through the wall.
7
Using the wall plugs and screws provided (if suitable), fit the bracket to
the wall.

7
8
Place the copper olives onto the protruding pipework.
IMPORTANT: The pipework must not protrude past the copper olives
by more than 7mm.
7mm
9
Holding the flat edges of the fixing
bracket with a large adjustable
spanner, screw the threaded
connector onto the fixing bracket
using a 22mm spanner. Repeat this
step on both sides.
10
Screw the wall plates over the wall bracket/threaded connectors, so
they are flush against the finished wall surface.
11
Ensuring the sealing washers are positioned within the valve inlets,
oer the bar valve into position as shown. Hand-tighten the fixing nuts
to allow enough free movement to gauge and fit the shower column.
Fitting the Shower Column
1
Ensure the sealing washer is in the connector at the bottom of the
shower column.

8
2
Position the shower column assembly on the bar valve outlet, hand
tighten the nut to allow enough free movement to gauge a fit.
The telescopic section of the riser can adjust the height between
845-1050mm, loosen the clamp on the rail bracket; adjust to the
desired height and re-tighten the clamp.
3
Place the wall stay over the section
marked up previously in step 5
(page 6). Ensure your fixing mark is
visible and centrally located in the slot.
4
Holding the wall stay in position, tilt the shower column back and slot
the rail bracket into the wall stay. If all components align correctly,
remove and set aside the shower column and proceed with the
following steps.
5
Drill and prepare fixings for the wall stay using the components
supplied (if suitable).
6
Secure the wall stay using the supplied screw (if suitable). Use
the orientation of the wall stay and the slotted fixing to allow for
minor adjustments.
7
Fit handset holder and hose ring in orientation
as shown, the holder can be positioned to the
left or right of the rail.
N.B. Unwind lever of the holder to loosen.

9
8
Reposition the shower column onto the bar valve outlet - hand tighten
only. Tilt the shower column back and slot the rail bracket into the
wall stay, hold in place by gently tightening the grub screws (final
adjustment will be made in step 10).
9
Tighten the fixing nuts of the shower column and bar valve inlets using
a suitable tool, taking care not to overtighten.
10
Adjust the rail bracket to ensure the shower column is level and
tighten grub screws to secure.
11
Turn on water supplies and check for leaks.
12
Ensuring the hose washer is in position; attach the non-conical end of
the hose to the bar valve. Run the shower for a few seconds to clear
any debris that may be present.
13
Pass the conical end of the shower hose through the hose restraint.
14
Ensuring the hose washer is in position; attach the conical end of the
hose to the shower head, then place the hose in the handset holder.
15
Fitting drencher head: Ensure the washer is in place, screw the
drencher head onto the arm, taking care not to damage the plated
surface. Tighten carefully using a suitable tool taking care not
to overtighten.

10
CARTRIDGE TEMPERATURE ADJUSTMENT
This product has been factory set under balanced pressures, and a hot
water supply of 65°C.
N.B. This product can reach temperatures in excess of 50°C.
If site conditions vary significantly from the factory conditions, it may be
necessary to reset the temperature of the cartridge to enable the product
to deliver 38°C when the temperature knob is set to the 38°C position.
In this case, you can adjust the cartridge to change the outlet water
temperature to suit your requirements. This can be adjusted whilst using a
digital thermometer and following the below instructions.
1. Turn the temperature knob to the 38°C position.
2. Carefully remove the cap, loosen the screw, then remove the
temperature knob.
3. Run the shower at required flow.
4. Whilst measuring the temperature of the water, and without removing
the temperature override stop, turn the brass spindle until the
temperature reaches 38°C.
5. Once 38°C is achieved, turn the shower o.
6. Refit the temperature knob by depressing the temperature override
safety button and carefully pushing the knob into place with the button
at the 12 o’clock position. Tighten the screw and fit the cap.
Thermostatic Valve
Override Button
Temperature Knob
Cap
Temperature
Override Stop
Screw
3
4
5
6
1
2

11
GENERAL MAINTENANCE
Cleaning the thermostatic cartridge
1. Before carrying out any maintenance, ensure the water supplies are
isolated. Once isolated, turn the shower on to release internal pressure.
If unsure contact a qualified tradesman.
2. Carefully remove the cap (1), loosen the screw (2), then remove the
temperature knob (3).
3. Note the position of the temperature override stop and thermostatic
cartridge before removal as they must be refitted in the same position.
Once noted, remove the temperature override stop (4) from the
cartridge. Remove the retaining nut (5) using a suitable spanner, remove
and clean the thermostatic cartridge (6) rinsing thoroughly under cold
water to remove any build up of limescale or debris.
4. If necessary, replace the cartridge. A replacement cartridge can be
obtained by contacting customer service on 01959 560010.
5. Refit the cartridge (6) into the bar valve body, tighten the retaining nut (5)
using a suitable spanner and refit the temperature override stop (4).
6. Refit the temperature knob (3) by depressing the temperature override
safety button and carefully pushing the knob into place with the button at
the 12 o’clock position. Tighten the screw (2) and fit the cap (1).
7. Reinstate the water supply and ensure there are no leaks.
Thermostatic Valve
Override Button
Temperature Knob
Cap
Temperature
Override Stop
Screw
3
4
5
6
1
2

12
Cleaning the on/o divert headworks (image overleaf)
1. Before carrying out any maintenance, ensure the mains water supply is
isolated. Once isolated, turn the shower on to release internal pressure. If
unsure contact a qualified tradesman.
2. Carefully remove the cap (1), loosen the screw (2), then remove the
control knob (3).
3. Using an suitable spanner, unscrew the brass retaining nut (4), then
remove the On/O Divert headworks (5).
4. Clean the headworks by rinsing thoroughly under cold water to remove
any build up of limescale or debris.
5. If necessary, replace the On/O Divert control headworks. A replacement
can be obtained by contacting customer service on 01959 560010.
6. Refit the headworks ensuring the locating lugs align correctly, then screw
on the retaining nut - hand tight then nip up using a suitable spanner. DO
NOT OVERTIGHTEN.
7. Re-fit the control knob (3). Tighten the screw (2) and fit the cap (1).
4
5
123
8. Reinstate the water supply and ensure there are no leaks.
Inlet filters
The product is protected by inlet filter washers. It is suggested that filters are
checked by a competent person at least every 12 months.

13
GENERAL CLEANING
Whilst modern plating techniques are used in the manufacture of these
fittings, the plating will wear if not cleaned properly. The safest way to clean
your product is to wipe with a soft damp cloth. Stains can be removed using
washing up liquid.
DO NOT USE ABRASIVE CLEANERS.
Limescale
Rub the nozzles of the shower head to break down scale build up. Should
chemical descaling of the head become necessary, remove the shower head
fully and immerse in a mild proprietary descaler.
IT IS IMPERATIVE THAT DESCALING IS CARRIED OUT STRICTLY
IN ACCORDANCE WITH THE MANUFACTURERS INSTRUCTIONS.
SUBSTANCES THAT ARE NOT SUITABLE FOR PLASTICS AND
ELECTROPLATED SURFACES MUST NOT BE USED.
USER INSTRUCTIONS
Shower valve - The bar valve and fixing bracket assembly MUST NOT be
used as a grab rail or means of support.
Controls - As viewed from the front:
On/O Divert - Left
Temperature - Right
To turn on the drencher head rotate the left hand control knob towards the
wall.
To turn on the handset rotate the left hand control knob away from the wall.
Turn the shower o by bringing the control knob back to the central position.
The shower is at mid-blend position when the button on the right hand knob
is centrally at the top.
N.B. The mid blend temperature is dictated by the temperature of the
incoming supplies.

14
To select a comfortable showering temperature, depress the override button
and rotate the dial using the temperature markings as a guide.
For cooler temperature - rotate towards the wall.
For warmer temperature - rotate away from the wall.
N.B. With all Sierra shower valves fitted to combination boiler systems, it may
be necessary to adjust the flow control knob and reduce the flow to achieve a
comfortable showering temperature.
Shower head
1. To select the preferred height of the handset, loosen the handset holder
by rotating the lever; the slider can then be moved up or down the rail,
tighten again to lock into position.
2. Angular adjustment is made by carefully but firmly pulling the shower head
forwards, or pushing the shower head back towards the wall.
N.B. The tension of the handset holder can be adjusted with a screwdriver.
3. To select the desired spray pattern rotate the shower spray plate clockwise
or anti-clockwise.
4. The height of the shower column can be adjusted, refer to Page 8,
section 2.
NEVER ATTEMPT TO MAKE ANY ADJUSTMENT TO THE SHOWER HEAD
BY PULLING ON THE SHOWER HOSE.
TROUBLE SHOOTING
Symptom Possible Cause Remedy
Only hot or cold
water from the
shower valve
outlet.
Partially closed stop or service valve
in water supply pipework to the
shower valve.
Open stop or service valve.
Inlet filter is partially blocked. Clean or replace, flush through
pipework before refitting.
Inlet water supplies are reversed
(hot to cold supply).
Check the connections are the
correct way round. Hot on the left
and cold on the right when viewed
from the front. Rework pipework as
necessary.
Handset holder
tight/loose.
Requires adjustment. Use cross head screwdriver in
handset holder to adjust.

15
Control dials sti
to operate.
Debris/Scale build up. See General Maintenance (pages
11-13).
No flow or low
flow rate and/
or varying
temperatures.
Check shower head, hose and filters
for any blockage.
Clean as necessary. Refer to General
Maintenance section (page 11).
Partially closed stop or service valve
in water supply pipework to the
shower valve.
Open stop or service valve.
Instantaneous water heater cycles
on and o as the flow rate or
pressure is too low.
Increase water flow rate or pressure
through system. Contact the boiler
manufacturer.
Head of water is below the minimum
distance required to activate pump.
Raise the cistern or fit a universal
booster pump.
Inlet filter is partially blocked. Clean or replace, flush through
pipework before refitting.
Hot or cold water being drawn o
elsewhere causing pressure changes
or instantaneous boiler temperature
changes.
Do not use other water outlets when
using the shower.
Make sure the maintained inlet
pressures are nominally balanced
and sucient.
Refer to Water Supply Requirements
(page 4).
Airlock or partial blockage of the
pipework (gravity supply only).
Flush through pipework to ensure
removal of debris and any airlocks.
No hot or cold water reaching the
shower valve.
Check hot and cold feeds (the valve
will shut down if either the hot or
cold supply fails).
Water leaking
from shower
head.
This is normal for a short time after
turning o.
Adjust angle of shower head
in holder as necessary to vary
draining time. Clean shower head.
Shower flow valve failing to close
fully, possibly due to water borne
debris.
Remove flow valve and check.
Refer to Cleaning the On/O Divert
Headworks section (page 12) before
dismantling shower valve.
Maximum water
temperature too
hot or cold.
Maximum water temperature set
incorrectly.
Reset maximum water temperature.
Refer to Cartridge Temperature
Adjustment (page 10).
Outlet water
temperature too
hot/cold.
Inlet filter is partially blocked. Check inlet filters for any blockages
and clean as necessary.
Installation conditions outside
operating parameters.
Refer to Water Supply Requirements
(page 4). Refer to Cleaning the
Thermostatic Cartridge section
(page 11). Refer to Cartridge
Temperature Adjustment (page 10).
Hot water temperature is less than
10°c above the required blend
temperature.
Adjust hot water temperature or
wait for water to reheat if stored
system is used.
Instantaneous water heater not
igniting because water flow rate is
too low.
Increase water flow rate through
the system. Check inlet filters and
clean or replace. Refer to Cleaning
the Thermostatic Cartridge section
(page 11). Contact the boiler
manufacturer.

Aqualisa Products Limited
The Flyers Way
Westerham Kent TN16 1DE
Customer Helpline: 01959 560010 | Brochure Hotline: [phone]
Website: www.aqualisa.co.uk | Email: [email protected]o.uk
Warranty: www.aqualisa.co.uk/warranty
Republic of Ireland
Sales enquiries: 01-864-3363
Service enquiries: 01-844-3212
Drawing No: 704449 Issue 02 July 19
Please note that calls may be recorded for
training and quality purposes.
The company reserves the right to alter, change
or modify the product specifications without
prior warning.
™ Trademark of Aqualisa Products Limited.